Vietnam is located in South East Asian area where have very large wind energy potential not only in offshore but also in onshore. Regarding to the energy policy of Vietnam, electricity generation firms have to meet the target of 3% renewable energy share in total installed capacity of power sources in 2010, and 5% renewable energy share in total installed capacity of power sources in 2020. Approximately, expected installed capacity of renewable energy sources may reach 2,400MW in 2020.